Analysis

  • max time kernel
    120s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2024 08:01

General

  • Target

    Ziraat_Bankasi_Swift_Mesaji_BXB04958T.exe

  • Size

    821KB

  • MD5

    7c36f1554bb662abddb2fafb5db3037d

  • SHA1

    4d2b146919805242a1699139d2937bae4fddfd4b

  • SHA256

    5f93d1ba8286162e4e7ebe907745b186d2301534fd8b39a84f129f3857f16c30

  • SHA512

    caa4b4b05fdd1a5b68979ed0c2388c727dd3d89d34a2351e7e392e1dd1764a87a0af1106e7beaa65a287cd625088daeb9ccfcad4fed8ca39b273fa7142c53665

  • SSDEEP

    24576:PBKn35eX+HnjaKB2LJKI923eTuOmvzzx428hYTGu:EpjHnj3B2VKI92uuOmrOSTGu

Malware Config

Extracted

Family

xworm

Version

5.0

C2

212.162.149.53:7071

Mutex

9GNxvcpH1EHQrLdj

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Extracted

Family

redline

Botnet

FOZ

C2

212.162.149.53:36014

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Agenttesla family
  • Detect Xworm Payload 3 IoCs
  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 4 IoCs
  • Redline family
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops startup file 4 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ziraat_Bankasi_Swift_Mesaji_BXB04958T.exe
    "C:\Users\Admin\AppData\Local\Temp\Ziraat_Bankasi_Swift_Mesaji_BXB04958T.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YkxAHNcqEmoeLS.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3068
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YkxAHNcqEmoeLS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD45F.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2776
    • C:\Users\Admin\AppData\Local\Temp\Ziraat_Bankasi_Swift_Mesaji_BXB04958T.exe
      "C:\Users\Admin\AppData\Local\Temp\Ziraat_Bankasi_Swift_Mesaji_BXB04958T.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2940
      • C:\Users\Admin\AppData\Local\Temp\XClient.exe
        "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: SetClipboardViewer
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:1892
        • C:\Windows\system32\schtasks.exe
          "schtasks.exe" /create /tn AccSys /tr "C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe" /st 08:07 /du 23:59 /sc daily /ri 1 /f
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1972
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\ACCApi'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2024
        • C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe
          "C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe"
          4⤵
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2272
      • C:\Users\Admin\AppData\Local\Temp\build.exe
        "C:\Users\Admin\AppData\Local\Temp\build.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2752

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD45F.tmp

    Filesize

    1KB

    MD5

    e3df24f15a34872fc1b40c9d615d729d

    SHA1

    3bcbec95ed5385bd302eba60a2a3997bcfa4d9ae

    SHA256

    12ee70755fdc103812c4f49744d2836845bed87a58d78ec13effd5161bbe67ff

    SHA512

    eeddba068d4845e8d34bf1cd66da4489e50974bac399ab33aebc38faad6c4c06c27606dabf449020ca124235f429a4b08e54170e4abccf4dd7357fb8227c7af9

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\XTDELP1I1U8LMSAAEU9K.temp

    Filesize

    7KB

    MD5

    adf79029ff5b1f79f1650a245dbf2098

    SHA1

    e1f5ec25fbc3d737dca433b56871506885de39ac

    SHA256

    a5a77f9db3353108499de3bbb4d23ecf020e5f8bbbda89a48ac9fbfe6313f646

    SHA512

    3beec93ec83a736e67409f230cf3636cf4976484d0b4e63cefd033b6bf494c92851943721623b80c0beaaad814ad083ac820ac9d589b2ba6432842c98a312718

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk

    Filesize

    692B

    MD5

    983b6a2338d170d0350ccdd9812fb5b7

    SHA1

    a043917ae26411379b8f5e8ed57d930e630ab04b

    SHA256

    12702c7b80ba7a92e36a440809d0b15c20b2f9ff4d1d4e005ad1fcc3449502c9

    SHA512

    cffb02b459ed09051d3a0d78b6fd55f2d7451305696eb82640cfd58a34b6c37ce55385ee72fc17ed7a298f132bd57fe4670edd63c759aff8895873341f1fff03

  • \Users\Admin\AppData\Local\Temp\XClient.exe

    Filesize

    40KB

    MD5

    1c5cf825e29b63a62c3c8b1589d51a1e

    SHA1

    ea4f1dceeeea35b6bd17f4040511bbd0341246a8

    SHA256

    d868406f1fdc6a5c15a70f03f6279fb8a3fe190ea5a4911bf6839fc483c753b0

    SHA512

    c780aff70b930ea221ffd96081c02116f76d2c7b20590fff6ab04038e2aef50ad57eb8f28a67c4dfdb6a00e3fe393e1238d448c3f346585242ee18d180203fd2

  • \Users\Admin\AppData\Local\Temp\build.exe

    Filesize

    300KB

    MD5

    1ed2ecae05aaa1c505136f5252287cc7

    SHA1

    2c73c09437c4c1d5e90013a6ca7a65ac0a5fadc5

    SHA256

    d771f70ba342e5d4cd7f129a4a2b4a6c6c7293233135f266db33f356986a70f9

    SHA512

    ca82139310ea62ec8703f6fcb19d843644a5ce40323e8f7857c9fd3173bb0796eb20f9002209b9fcbfa7ce9858fe3b932e070f8449bc2736b6712d39515d9219

  • memory/1892-58-0x000000001A5C0000-0x000000001A604000-memory.dmp

    Filesize

    272KB

  • memory/1892-50-0x0000000002100000-0x0000000002118000-memory.dmp

    Filesize

    96KB

  • memory/1892-49-0x000000001A7F0000-0x000000001A842000-memory.dmp

    Filesize

    328KB

  • memory/1892-48-0x0000000002090000-0x00000000020E2000-memory.dmp

    Filesize

    328KB

  • memory/1892-47-0x0000000000920000-0x000000000093E000-memory.dmp

    Filesize

    120KB

  • memory/1892-42-0x0000000000950000-0x0000000000960000-memory.dmp

    Filesize

    64KB

  • memory/1892-59-0x000000001A730000-0x000000001A774000-memory.dmp

    Filesize

    272KB

  • memory/2024-57-0x00000000026E0000-0x00000000026E8000-memory.dmp

    Filesize

    32KB

  • memory/2024-56-0x000000001B180000-0x000000001B462000-memory.dmp

    Filesize

    2.9MB

  • memory/2132-27-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2132-6-0x0000000005270000-0x0000000005312000-memory.dmp

    Filesize

    648KB

  • memory/2132-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

    Filesize

    4KB

  • memory/2132-1-0x0000000001190000-0x0000000001264000-memory.dmp

    Filesize

    848KB

  • memory/2132-2-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2132-3-0x00000000009F0000-0x0000000000A0C000-memory.dmp

    Filesize

    112KB

  • memory/2132-4-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

    Filesize

    4KB

  • memory/2132-5-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2272-66-0x0000000000210000-0x0000000000220000-memory.dmp

    Filesize

    64KB

  • memory/2752-41-0x0000000000210000-0x0000000000262000-memory.dmp

    Filesize

    328KB

  • memory/2940-12-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2940-22-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2940-24-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2940-21-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2940-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2940-14-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2940-18-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2940-16-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB